[INFO] fetching crate letterman 0.2.7...
[INFO] checking letterman-0.2.7 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate letterman 0.2.7 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate letterman 0.2.7
[INFO] finished tweaking crates.io crate letterman 0.2.7
[INFO] tweaked toml for crates.io crate letterman 0.2.7 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate letterman 0.2.7 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 250 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (available: v0.22.1)
[INFO] [stderr]       Adding dns-lookup v1.0.8 (available: v3.0.0)
[INFO] [stderr]       Adding flume v0.10.14 (available: v0.11.1)
[INFO] [stderr]       Adding md5 v0.7.0 (available: v0.8.0)
[INFO] [stderr]       Adding quoted_printable v0.4.8 (available: v0.5.1)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rustls-pemfile v0.2.1 (available: v2.2.0)
[INFO] [stderr]       Adding tokio-rustls v0.23.4 (available: v0.26.2)
[INFO] [stderr]       Adding trust-dns-resolver v0.20.4 (available: v0.23.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ffea5b7a6ed79a6ababa8474922fad1e61c942872cc2c4e10e296d4a11c6faa
[INFO] running `Command { std: "docker" "start" "-a" "3ffea5b7a6ed79a6ababa8474922fad1e61c942872cc2c4e10e296d4a11c6faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ffea5b7a6ed79a6ababa8474922fad1e61c942872cc2c4e10e296d4a11c6faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ffea5b7a6ed79a6ababa8474922fad1e61c942872cc2c4e10e296d4a11c6faa", kill_on_drop: false }`
[INFO] [stdout] 3ffea5b7a6ed79a6ababa8474922fad1e61c942872cc2c4e10e296d4a11c6faa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63be6275155ff9e98cc6c90a268a820803bd69a3d15d1c03318585e875ca2c30
[INFO] running `Command { std: "docker" "start" "-a" "63be6275155ff9e98cc6c90a268a820803bd69a3d15d1c03318585e875ca2c30", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling enum-as-inner v0.4.0
[INFO] [stderr]    Compiling enum-as-inner v0.3.4
[INFO] [stderr]    Compiling rustls v0.20.9
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling new_mime_guess v4.0.4
[INFO] [stderr]     Checking crossbeam-queue v0.3.12
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking gzb_binary_69 v0.2.2
[INFO] [stderr]     Checking cidr v0.2.3
[INFO] [stderr]     Checking quoted_printable v0.4.8
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking crossbeam v0.8.4
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking openssl-sys v0.9.109
[INFO] [stderr]     Checking parking_lot_core v0.8.6
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking uuid v1.18.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking dns-lookup v1.0.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ring v0.17.14
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking flume v0.10.14
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking blob-uuid v0.5.0
[INFO] [stderr]     Checking unique_id v0.1.7
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking openssl v0.10.73
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking webpki v0.22.4
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking native-tls v0.2.14
[INFO] [stderr]     Checking trust-dns-proto v0.20.4
[INFO] [stderr]     Checking trust-dns-proto v0.21.2
[INFO] [stderr]     Checking sha256 v1.6.0
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking rustque v1.1.1
[INFO] [stderr]     Checking tokio-rustls v0.23.4
[INFO] [stderr]     Checking trust-dns-resolver v0.20.4
[INFO] [stderr]     Checking trust-dns-resolver v0.21.2
[INFO] [stderr]     Checking tokio_spf_validator v1.0.3
[INFO] [stderr]     Checking letterman_email_body_parser v1.0.5
[INFO] [stderr]     Checking letterman v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]   --> src/common.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         format!("!!! {:?}",v);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let _ = format!("!!! {:?}",v);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]   --> src/common.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         format!("!!! {:?}",v);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let _ = format!("!!! {:?}",v);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.67s
[INFO] running `Command { std: "docker" "inspect" "63be6275155ff9e98cc6c90a268a820803bd69a3d15d1c03318585e875ca2c30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63be6275155ff9e98cc6c90a268a820803bd69a3d15d1c03318585e875ca2c30", kill_on_drop: false }`
[INFO] [stdout] 63be6275155ff9e98cc6c90a268a820803bd69a3d15d1c03318585e875ca2c30